DOI: 10.1246/bcsj.70.2647. Crystal Structure and Physical Properties of (BEDT-TTF)2BF4<i>Sol</i>0.5 (<i>Sol</i> = 1,1,2-Trichloroethane, 1,2-Dibromoethane, 1,2-Dichroloethane)

Crystal Structure and Physical Properties of (BEDT-TTF)2BF4Sol0.5 (Sol = 1,1,2-Trichloroethane, 1,2-Dibromoethane, 1,2-Dichroloethane)

10.1246/bcsj.70.2647

Crossref journal-article

Oxford University Press (OUP)

Bulletin of the Chemical Society of Japan (286)

Abstract

Abstract The crystal structures and phase transition nature of (BEDT-TTF)2BF4Sol0.5 (Sol = TCE, DBE, and DCE) are investigated by means of X-ray diffraction, electrical conductivity, ESR, and magnetic susceptibility measurements. As the size of the neutral molecules become smaller (TCE &gt; DBE &gt; DCE), the metal-insulator transition temperature rises (60 K &lt; 100 K &lt; 110 K), showing that their transitions are governed mainly by the structural degrees of freedom. For the DBE and DCE salts, these transitions are simple metal-insulator transitions, whereas the transition of the TCE salt occurs only when the sample is cooled slowly, and the Fermi surfaces survive in the resulting low-temperature phase. For this salt, the anomaly of the interplanar resistivity appears at ca. 160 K for the slow cooling process, and the difference of the ESR line width between the slow and rapid cooling processes is also observed below this temperature. These phenomena are due to the disorder enhanced by the generation of the in-plane superlattice.

Authors 4

Akira Miyazaki (first)
Isao Ichikawa (additional)
Toshiaki Enoki (additional)
Gunzi Saito (additional)

References 23 Referenced 8

10.1021/ja00308a007
10.1103/PhysRevB.50.16287
10.1103/PhysRevB.55.6847
10.1103/PhysRevB.36.1457
10.1016/0038-1098(82)90607-X
{'key': '2024012004284398500_r6'}
10.1016/0379-6779(94)02650-N
10.1016/0038-1098(83)91034-7
10.1021/ja00340a028
10.1016/S0379-6779(97)80982-4
10.1107/S0567739468000707
{'key': '2024012004284398500_r12'}
{'key': '2024012004284398500_r13'}
10.1103/PhysRevLett.4.13
10.1246/bcsj.57.627
10.1021/ja00480a005
10.1021/j100785a001
{'key': '2024012004284398500_r18'}
{'key': '2024012004284398500_r19'}
10.1021/ja00409a031
10.1051/jphys:01977003808093100
{'key': '2024012004284398500_r22'}
{'key': '2024012004284398500_r23'}

Dates

Type	When
Created	19 years, 2 months ago (June 15, 2006, 1:21 a.m.)
Deposited	1 year, 7 months ago (Jan. 19, 2024, 11:28 p.m.)
Indexed	1 year, 7 months ago (Jan. 20, 2024, 3:22 p.m.)
Issued	27 years, 9 months ago (Nov. 1, 1997)
Published	27 years, 9 months ago (Nov. 1, 1997)
Published Online	19 years, 2 months ago (June 15, 2006)
Published Print	27 years, 9 months ago (Nov. 1, 1997)

Funders 0

None

BibTeX

@article{Miyazaki_1997, title={Crystal Structure and Physical Properties of (BEDT-TTF)2BF4Sol0.5 (Sol = 1,1,2-Trichloroethane, 1,2-Dibromoethane, 1,2-Dichroloethane)}, volume={70}, ISSN={1348-0634}, url={http://dx.doi.org/10.1246/bcsj.70.2647}, DOI={10.1246/bcsj.70.2647}, number={11}, journal={Bulletin of the Chemical Society of Japan}, publisher={Oxford University Press (OUP)}, author={Miyazaki, Akira and Ichikawa, Isao and Enoki, Toshiaki and Saito, Gunzi}, year={1997}, month=nov, pages={2647–2655} }

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